Objective To evaluate the value of clinical application of three-dimensional computed tomographic angiography(3D-CTA)in ruptured intracranial aneurysms at acute phase.Methods One hundred and twenty-eight consecutive patients with acute subarachnoid hemorrhage and clinical-highly-suspected ruptured intracranial aneurysms underwent 3D-CTA by GE Lightspeed pro scanner before admission(at 2h~4d after onset).Then conventional digital subtraction angiography(DSA)were performed in 111 patients after 3D-CTA.Six pat...